Scum Villain Self Saving System

BOOM!!! An atomic bomb goes off, lucky for Cumas, a window saved him. It appeared just in his class and told him to go to a bunker and when it went of, Cumas felt lucky having his own system protecting him, or is it? He has to complete quest to survive if he wants to stay on the safest place on earth, the bunker.

The world was invaded by monsters that suddenly appeared all over the world and a system-like software had been installed on some humans' intelligence by an unknown force. The war between monsters and humans was bloody and two billion people lost their lives. Jianyu, who was at the bottom of the power ranking of the Upgraded Humans with his team, was preparing for a future where he would lead humanity against this extraordinary enemy...

After suffering a heat stroke, Blake, a hardworking but poor university student, mysteriously acquires a high-tech system. Overnight, his mundane university life transforms into a whirlwind of success. Master’s degree? Check. PhD? Easy. From a nobody to a scientific sensation, he ascends to celebrity status. But as he delves deeper into the system’s missions, he realizes his journey is far from over. Can he achieve the ultimate glory of a Nobel Prize? Blake's quest for knowledge and fame is just beginning, but the system holds secrets that could change humanity forever.

Ibuki Ken is a young man that despises society very much. There are many causes why Ibuki dislikes society that much. He hates society because society is so judgmental, apathetic, and ignorant. There are so many stereotypes and stigma. "it’s toxic!" "Society is so fake that the truth hurts people!" Choosing to be single and have no friends, He was as abnormal, immature, sad. That’s was his choice. But Why DOES GOD CHOOSE HIM TO BE REINCARNATED IN ANOTHER WORLD

In a world ruled by magic and ancient bloodlines, Aiden is born into the weakest noble family. After being framed and executed by his rivals, he wakes up in a dragon's lair, where the ancient Dragon Code System bonds with his soul. The system allows him to absorb dragon essence, granting him rare magical powers and physical strength. As Aiden rises through the ranks of the magical world, he discovers that his execution was orchestrated by a secret faction trying to control the world's magic—and his newfound powers are the key to breaking their grip.

"Twilight" a fictional character came from Role Playing Game called [Tales of the Legion Heroes] He was an overpowered mob character that can surpass the main character in the storyline. One day, Mr. Daisuke died officially on Earth and was reincarnated inside the body of 17 years old "Twilight" Because of an unhealthy lifestyle and bad habits like overworking his body by playing the game to pay the several million of debt from the loan shark. He was given a second chance by the God & Goddess of Asgard and summon to another world similar and at the same time different from the so-called Earth. [AETHER] 'A world that revolved around the main character!' 'If you are thinking that I was just a mob character who has no role in the storyline then you are wrong.' 'Even if I have no role in the storyline doesn't mean that I cannot surpass the main character or the protagonist.' 'I will use my profound knowledge and wisdom to clear the Impossible quest and mission.' 'I will hoard all artifacts and treasure that are found inside the dungeon.' 'I will climb the top step by step and reach the height that humankind never reached before.' 'Lastly, I will support the main character from the shadow and change their shitty ending that destroys this world.' 'I shall let the world know my name [Twilight] The Dominator, who will soon become the living legend of Nine World Realm.' 'Just hearing my name brings justice and order to the land while making enemies tremble in fear!' 'Twilight will annihilate all enemies before him!... mark as a true hero of Midgard.'

Desmond was a nobody, mocked, bullied, and forgotten, with no family and no future. But when he stumbles across a strange glowing creature trapped in a bottle, his fate takes a shocking turn. Bonded to a mysterious system that grants him incredible powers, Desmond finds himself caught between survival and destiny. In a city where men are forced into marriage or conscripted to die at the frontline, Desmond makes an impossible choice: to marry not one, but three women, each hiding secrets, ambitions, and grudges that could either elevate him… or destroy him. But the system demands more. Affection, loyalty, trust, these are his keys to unlocking godlike strength. Every challenge he completes pulls him deeper into a dangerous game of power, revenge, and hidden truths. And as war looms, conspiracies unravel, and enemies close in, Desmond must decide: remain the forgotten nobody he once was, or rise as a legend feared by kings.

Riyan who is a fox spirit, when he was 15, he was tricked to think that the sky god of Azara saved his life, to repay that he went to Azara, the Sky realm. In other words, his soul transmigrated into the body of a war god, who was blind. Sky king had promised to let him go when his son ascends the throne. He trained to death off in order to become most powerful war god. He changed the previous image of Asuna as war mad person. He fulfilled all the things Sky king asked and when he thought he could finally go home. He was backstabbed. Later thinking that there was no purpose left in his life. He went to Styx Bridge and jumped from there. Instead of perishing, he woke up in his home. Dungeons opened when he was 5 years old on Earth, But not on Ankara the land of demons. He visited a dungeon and ended up beating a fake boss and won a system like feature. And it was just beginning. Author's note: It's my first time trying to write something. If you find anything is wrong in chapters or mistake. Do let me know. Thank you.

When the beaten and broken Seo Ireum is on the verge of giving up, a strange blue screen appears. [Do you want to live] After accepting the offer, he doesn't expect his path to head to the glittering stage of Korea’s most competitive idol survival show, Starlit and into the harsh world of the entertainment industry. Each mission brings him new skill, fame and power. But also reveals fragments of horrifying truth. His father's death wasn't an accident, his mother's death a lie and the system guiding him may be something far more personal than artificial intelligence. As Ireum rises under the spotlight, every applause hides a knife, and every stage hides a secret. In a game where beauty sells and betrayal wins, can he use fame as a weapon for revenge?

In a galaxy where civilizations have been systematically destroyed by an unknown force, the leaders of the surviving civilizations come together to form a last-ditch effort to save themselves and their people. They construct a massive starship, the "Last System," and its crew must navigate through treacherous space and overcome unimaginable challenges to find the source of the destruction and put an end to it once and for all. Along the way, they must decide whether to offer aid and support to struggling civilizations or focus solely on their mission and the survival of their people. As they get closer to the source of the destruction, they uncover a dark secret about the true nature of the threat they face and realize that their mission is not just about saving themselves, but about protecting the entire galaxy from an ancient evil that threatens to consume everything in its path. The crew of the Last System must make the ultimate sacrifice to stop the threat and ensure the survival of all life in the galaxy